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American Dental Association
brochure, pamphlet, dental health education, gum disease, periodontics
Dentistry | History of Science, Technology, and Medicine | Periodontics and Periodontology
American Dental Association. Bureau of Public Relations and Coolidge, Edgar D., "Diseases of the Gums and Other Supporting Tissues of the Teeth and Their Treatment (1949)" (1949). Patient Dental Health Education Brochures. 21.